WO2009092232A1 - 电磁振动装置及其制造方法 - Google Patents

电磁振动装置及其制造方法 Download PDF

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Publication number
WO2009092232A1
WO2009092232A1 PCT/CN2008/073507 CN2008073507W WO2009092232A1 WO 2009092232 A1 WO2009092232 A1 WO 2009092232A1 CN 2008073507 W CN2008073507 W CN 2008073507W WO 2009092232 A1 WO2009092232 A1 WO 2009092232A1
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WIPO (PCT)
Prior art keywords
voice coil
vibrating piece
piece
basin frame
vibration device
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PCT/CN2008/073507
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English (en)
French (fr)
Inventor
Hsin Min Huang
Original Assignee
Hsin Min Huang
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Publication date
Application filed by Hsin Min Huang filed Critical Hsin Min Huang
Priority to US12/735,940 priority Critical patent/US8395285B2/en
Publication of WO2009092232A1 publication Critical patent/WO2009092232A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Definitions

  • the present invention relates to an apparatus for generating mechanical vibration using electromagnetic force, and more particularly to an electromagnetic vibrator and a method of manufacturing the same, which is similar to an electromagnetic vibration sounding structure of an existing speaker.
  • the electromagnetic vibrator previously applied by the applicant is composed of a vibrating piece, a hanging edge, a basin frame and a magnetic return system, and the back surface of the vibrating piece is connected with the voice coil, and the voice coil is placed in the magnetic return system, the vibrating piece and The hanging edge is integrated, and the voice coil wire is connected through the vibrating piece and then connected to the terminal piece book on the basin frame.
  • the back surface of the vibrating piece is glued to the voice coil, and the voice coil wire is connected to the conductive wire through the vibrating piece, and the other end of the conductive wire is connected to the terminal piece on the basin frame.
  • the above structure omits the production of the vibrating piece without using or using a glue of non-critical function, and is replaced by machine equipment, which includes injection molding, ultrasonic, ultrasonic, hot melt, etc., thereby reducing human error guarantee.
  • machine equipment which includes injection molding, ultrasonic, ultrasonic, hot melt, etc., thereby reducing human error guarantee.
  • the connection between the vibrating piece and the basin frame also breaks the traditional process of the speaker, and replaces the glue with ultrasonic ultrasonic and hot-melt connection, thus overcoming the drawbacks of the conventional vibrator due to the bonding method between the vibrating piece and the hanging edge. Increased product quality and yield, resulting in lower costs.
  • the above-mentioned electromagnetic vibrator is still glued by the vibrating piece and the voice coil, and since the glue is generally a polar substance, it is easy to be oxidized after a long time, and the physical properties of the glue are deteriorated due to the oxidation of the glue, thereby causing the subsequent instability. Peeling phenomenon, and because the sizing process often uses artificial methods, the process is complicated and the amount of sizing is difficult to grasp. Therefore, the weight consistency and stability of the vibrating piece cannot be guaranteed, and the quality of the entire product cannot be guaranteed, which limits its use. range.
  • the technical problem to be solved by the present invention is to provide an electromagnetic vibration device which overcomes the above-mentioned drawbacks of the prior art and which has more stable performance and good quality consistency.
  • the invention also provides a method for manufacturing an electromagnetic vibration device, which makes the production more convenient and the product qualification rate is higher.
  • Electromagnetic vibration device including vibrating piece, hanging edge, upper and lower basin frame, voice coil, magnetic return system, said vibration
  • the surface of the movable piece is uniformly distributed around the circumference of the voice coil.
  • the voice coil has corresponding inserts, and the insert of the voice coil passes through the voice coil fixing hole of the vibrating piece and is fixed on the vibrating piece.
  • the wire of the above voice coil is embedded in the groove on the back of the vibrating piece, and the other end of the wire is fixed on the lower basin frame.
  • the vibrating piece and the upper and lower basin frame are directly injection molded.
  • the vibrating piece, the suspension side and the upper basin frame are welded together by insert molding.
  • the vibrator vibrates up and down when a sine wave signal is input to the vibrator.
  • a sine wave signal is input to the vibrator, the frequency of this signal is exactly the same as the natural resonance frequency of the vibrator. Only a small amount of electric energy is supplied to the vibrator, which will cause the vibrator to generate a maximum amplitude. vibration.
  • the traditional structure is to bond the voice coil and the vibrating piece with glue.
  • the invention has the special connection method through the connection between the vibrating piece and the voice coil, and is completed by machine equipment without glue, so that the vibration piece and the voice coil can be firmly fixed to prevent the glue from being generated due to oxidation after a long time of use. Not peeling off.
  • the glue is also omitted.
  • the utility model overcomes the disadvantages of the vibrating film and the voice coil of the original vibrator, and improves the quality and the qualified rate of the product, so that the process is simple, the production is fast, the productivity is greatly improved, and the cost is reduced.
  • the conductive piece is omitted, and the weight of the vibrating piece is directly adjusted, so that it is convenient to manufacture, and the natural frequency of the vibrator can be adjusted more conveniently.
  • the electromagnetic vibration device can be arbitrarily adjusted in volume, high in vibration efficiency, stable in performance, good in consistency, and low in cost, it can be widely used in various products that require electromagnetic vibration, such as radiators and speakers.
  • FIG. 1 is a schematic exploded view of a structure of an embodiment of the present invention.
  • FIG. 2 is a rear elevational view of the combination of the vibrating piece and the suspension according to the embodiment of the present invention.
  • 3 is a schematic view showing the connection of a suspension edge, a vibrating piece and a voice coil in the vibrating piece assembly according to the embodiment of the present invention.
  • 4 is a schematic structural view of a vibrating piece assembly according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a speaker according to still another embodiment of the present invention.
  • the electromagnetic vibration device comprises a vibrating piece 2, a voice coil 6, a hanging edge 3, an upper basin frame 5, a lower basin frame 7 with a magnetic return system 8, and the vibrating piece 2 is uniformly distributed in the circumferential direction.
  • a voice coil fixing hole 21 the voice coil 6 has a corresponding six insertion piece 61 passing through the voice coil fixing hole 21 on the vibrating piece 2, as shown in Fig. 3, the insertion piece 61 is bent and fixed on the vibration piece 2, and the insertion piece 61
  • the reverse portion is inserted into the hole 31 provided in the overlapping portion of the suspension 3 and the vibrating piece 2, as shown in Fig. 3.
  • the hanging edge 3 is connected to the upper frame 5, and the upper frame 5 is connected to the lower frame 7.
  • the wire 10 on the voice coil 6 is embedded in the groove 22 on the back of the vibrating piece 2, and the second block 23 is provided on both sides of the groove 22, so that the wire 10 can be better fixed, as shown in Fig. 2.
  • the other end of the wire 10 is fixed to the terminal piece on the lower basin frame 5,
  • the above-mentioned suspension 3 can be a circular ring, and its inner ring is connected to the vibrating piece 2, so that the vibrating piece 2 has no covering layer, as shown in Fig. 4.
  • the vibrating piece 2 described above may also be tapered or curved and can be used to make a speaker, as shown in Fig. 5.
  • the vibrating piece 2 and the suspension 3 are integrally molded, and the glue bonding can be omitted.
  • the vibrating piece 2, the hanging edge 3 and the upper basin frame can also be integrally molded, and the glue bonding can be omitted.
  • the electromagnetic vibration device of Fig. 1 described above is made by the following method:
  • the electromagnetic vibration device shown in Fig. 1 was obtained by the above method.
  • the vibrating piece assembly 4 of the electromagnetic vibrating device of FIG. 1 can be changed to the vibrating piece assembly as shown in FIG. 4, and the remaining components of the electromagnetic vibrating device are the same as the electromagnetic vibrating device of FIG. 1, wherein the vibrating piece assembly is manufactured
  • the vibrating piece 2 and the upper basin frame 5 are placed in the hanging edge 3 mold to be embedded, and the hanging edge 3 is only wrapped around the vibrating plate 2, and is also integrated with the upper basin frame 5 to form a vibrating piece assembly. 4.
  • the speaker vibrating piece of the existing process has a corresponding sound at the position corresponding to the voice coil protrusion
  • the ring fixing hole 21, the vibrating piece 2 may be a tapered or curved shape or other trumpet conventional vibrating piece shape (commonly known as drum paper);

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Description

电磁振动装置及其制造方法 技术领域
本发明涉及一种利用电磁力产生机械振动的设备，特别涉及一种电磁振动器 及其制造方法， 该种电磁振动装置其与现有扬声器的电磁振动发声结构相似。 说
背景技术
本申请人以前申请的电磁振动器，其由振动片、悬边、盆架、磁回系统组成， 振动片背面与音圈相连， 音圈又置于磁回系统中， 所述的振动片和悬边成一体， 音圈导线通过振动片连接后再与盆架上的端子片书相连。制造时， 将振动片的背面 与音圈胶接， 并将音圈导线通过振动片与导电线连接， 导电线另一端再与盆架上 端子片相连。
上述这种结构省略了振动片的制作无需使用或使用非关键性功能的胶水，而 改用机器设备完成， 此机器设备含注塑、 超音、 超声、 热熔等， 因此能够减少人 为的误差保证振动片的一致性和稳定性。振动片与盆架相连也打破了扬声器的传 统工艺， 用超音波超声、 热熔衔接的方式取代了胶水， 因此其克服了传统振动器 由于振动片与悬边采用胶接方法带来的弊端，提高了产品的质量和合格率， 从而 降低了成本。
但上述电磁振动器由于振动片与音圈仍采用胶水接着，而由于胶水一般为极 性物质， 时间长了后容易氧化， 由于胶水的氧化而使其物性变差， 于是造成接着 不牢而产生剥离现象， 而且由于施胶过程常使用人为方式作业， 因此制程繁复， 施胶量难以掌握一致， 于是无法保障振动片的重量一致性和稳定性， 也无法保证 整个产品的质量， 限制了其使用范围。
采用上述振动片与音圈这种连接方式的扬声器，在扬声器的功率较大时， 由 于振动较激烈， 振动片与音圈间常会出现剥离脱开而损坏。 发明内容
本发明所要解决的技术问题是克服现有技术的上述缺陷而提供一种电磁振 动装置， 使其性能更稳定、 品质一致性好。
本发明还提供一种电磁振动装置的制造方法，使其生产更方便，产品合格率 更高。
本发明解决上述技术问题所采用的技术方案为：
电磁振动装置， 包括振动片、 悬边、 上下盆架、 音圈、 磁回系统， 所述的振 动片表面沿圆周均布音圈固定孔，所述的音圈有相应的插片， 音圈的插片穿过振 动片的音圈固定孔而固定在振动片上。
上述音圈的导线嵌入振动片背面的凹槽中， 导线另一端固定在下盆架上。 上述振动片、 上下盆架直接注塑而成。
上述振动片、 悬边和上盆架用嵌入注塑的方式熔接在一起。
此振动器按照扬声器的磁回结构， 当输入正弦波讯号给振动器时，振动器会 上下振动。而当输入一个固定的正弦波讯号给振动器， 此讯号的频率正好是振动 器的自然共振频率相同时， 只需提供很小的一点电能给振动器， 就会让振动器产 生最大振幅上下剧烈振动。
为制造上述电磁振动装置， 采用如下步骤：
( 1 ) 、 注塑出沿圆周均匀与音圈插片对应位置的音圈固定孔的振动片和上 盆¾ &.
( 2) 、 将振动片、 上盆架放入悬边模具中嵌入射出成振动片组合件；
( 3) 、 振动片组合件和下盆架用超音波、 超声波或热熔方法结合在一起； (4) 、 音圈的凸起插片穿过振动片的音圈固定孔， 将已穿过振动片的音圈 凸起的插片反折， 使之紧紧扣住在振动片上， 将音圈和振动片牢牢固定住， 并将 音圈的导线嵌在音圈背面的槽内后再与下盆架上端子片相连；
( 5) 、 磁回系统固定在下盆架内。
与现有技术相比， 本发明的优点在于：
1、 传统的结构都是将音圈和振动片用胶水粘接， 但是当输入大功率时， 振 动片振幅较大，很容易出现音圈与振动片或鼓纸间的脱离。本发明由于振动片与 音圈间的连接通过特殊的插接方式，无需胶水而用机器设备压制完成， 因此能够 保证振动片和音圈间牢固固定，防止出现胶水长时间使用后因氧化而产生接着不 牢剥离现象。 还省去了胶水， 由于打胶的多与少会直接影响振动片的共振频率， 而无论是机器上胶或者人工上胶， 在胶量要求非常小的时候， 都会带来误差，因 此本发明克服了原有振动器其振动片与音圈采用胶接方法带来的弊端，提高了产 品的质量和合格率， 使之工艺简单、 生产快速， 大大提高生产率， 从而降低了成 本。
2、 省略了导电片， 直接调整振动片的重量， 因而方便制作， 也能更方便的 调整振动器的固有频率。
由于电磁振动装置体积可以任意调整， 振动效率高、 性能稳定、 一致性好、 成本低， 因此可以广泛应用于各种需用电磁产生振动的产品中， 如散热器、扬声 器等。 附图说明
图 1为本发明实施例的结构分解示意图。
图 2为本发明实施例的振动片与悬边的组合件的背面图。
图 3为本发明实施例的振动片组合件中悬边、 振动片与音圈连接示意图。 图 4为本发明另一实施例的振动片组合件的结构示意图。
图 5为本发明又一实施例扬声器的结构示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图 1所示， 电磁振动装置， 其包括振动片 2、 音圈 6、 悬边 3、 上盆架 5、 带 磁回系统 8的下盆架 7，振动片 2上沿圆周方向均布六个音圈固定孔 21， 音圈 6有相 应的六个插片 61穿过振动片 2上的音圈固定孔 21， 见图 3， 插片 61弯曲后固定在振 动片 2上， 插片 61的反扣部分刚好嵌入悬边 3与振动片 2的重叠部分中设置的孔 31 中， 见图 3， 悬边 3与与上盆架 5相连， 上盆架 5再与下盆架 7相连。
音圈 6上的导线 10嵌在振动片 2背面的槽 22上， 槽 22二侧还有二档块 23，能更 好的固定导线 10， 见图 2。
导线 10另一端固定在下盆架 5上的端子片上，
上述悬边 3可为圆环形，其内圈与振动片 2连接， 因此振动片 2上没有覆盖层， 见图 4。
上述振动片 2也可为锥形或弧形， 可用于制作扬声器， 如图 5。
上述振动片 2与悬边 3整体注塑而成， 可以省去胶水粘接。
上述振动片 2、 悬边 3和上盆架也可整体注塑而成， 可以省去胶水粘接。
上述图 1中的电磁振动装置通过以下方法制成：
( 1 )、注塑出沿音圈插片对应位置的圆周均匀设置音圈固定孔 21的振动片 2 和上盆架 5;
( 2 ) 、 将振动片 2、 上盆架 5放入悬边 3模具中嵌入射出， 悬边 3在振动片 2 上将振动片 2完全包覆， 同时和上盆架 5融为一体成振动片组合件 4;
( 3 ) 、 振动片组合件 4和下盆架 5用超音波、 超声波或热熔方法等结合在一 起；
( 4) 、 音圈 6的凸起插片 61穿过振动片 2的音圈固定孔 21， 将已穿过振动片 的音圈凸起的插片 61反折， 使之紧紧扣在振动片 2上， 将音圈和振动片牢牢固定 住， 并将音圈 6的导线 10嵌在音圈背面的槽 62内后再与下盆架 7上端子片相连； ( 5 ) 、 磁回系统 8固定在下盆架 7内。
经过上述方法制得如图 1所示的电磁振动装置。
图 1中的电磁振动装置的振动片组件 4可以改变成如图 4所示的振动片组合件， 电磁振动装置的其余部件与图 1中的电磁振动装置相同， 其中振动片组合件的制 造方法为： 将振动片 2、 上盆架 5放入悬边 3模具中嵌入射出， 悬边 3只沿振动板 2 周围一圈包覆， 也同时和上盆架 5融为一体成振动片组合件 4。
当上述振动片与音圈的这种连接方式应用于扬声器结构时，采用如下方式制 成：
( 1 ) 将现有制程的扬声器振动片，在音圈凸起相对应的位置冲出有相应音 圈固定孔 21， 振动片 2可以为锥形或弧形的或其他喇叭传统振动片形 状 （俗称鼓纸） ；
( 2 ) 将振动片 2和悬边 3连接，可以用超音波连接，也可以用传统的胶水连 接；
( 3 ) 音圈 6的插片 61穿过振动片 2的音圈固定孔 21，将已穿过振动片的音圈 凸起的插片 61反折，使之紧紧扣住在振动片上，将音圈和振动片牢牢 固定住。
其它部件可以按扬声器的传统制作方法制得。

Claims

权 利 要 求 书
1、 电磁振动装置， 包括上下盆架、 振动片、 悬边、 音圈， 其特征在于： 所 述的振动片表面沿圆周均分布音圈固定孔，所述的音圈有与音圈固定孔相对应位 置的插片， 音圈的插片穿过振动片的音圈固定孔而反扣固定在振动片上。
2、如权利要求 1所述的电磁振动装置， 其特征在于： 所述的悬边的中间部分 覆盖在振动片上， 并有与插片相应的孔， 所述的插片的反扣部分刚好置于孔中。
3、 如权利要求 1或 2所述的电磁振动装置， 其特征在于： 所述的音圈的导线 嵌入振动片背面的凹槽中， 导线另一端固定在下盆架上。
4、 如权利要求 1或 2所述的电磁振动装置， 其特征在于： 所述的振动片、 悬 边和上盆架用嵌入注塑的方式熔接在一起。
5、 如权利要求 3所述的电磁振动装置， 其特征在于： 所述的振动片、 悬边和 上盆架用嵌入注塑的方式熔接在一起。
6、 电磁振动装置的制造方法， 其特征在于： 由以下步骤构成：
( 1 ) 、 注塑出沿圆周均匀与音圈插片对应位置的音圈固定孔的振动片和上 盆¾ &.
( 2) 、 将振动片、 上盆架放入悬边模具中嵌入射出成振动片组合件；
( 3) 、 振动片组合件和下盆架用超音波、 超声波或热熔方法结合在一起；
(4) 、 音圈的凸起插片穿过振动片的音圈固定孔， 将已穿过振动片的音圈 凸起的插片反折， 使之紧紧扣住在振动片上， 将音圈和振动片牢牢固定住， 并将 音圈 6的导线嵌在音圈背面的槽内后再与下盆架上端子片相连；
( 5) 、 磁回系统固定在下盆架内。
1
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